Today's Message Index:
----------------------
1. 04:40 AM - First choice alternator decision ()
2. 09:10 AM - Re: First choice alternator decision (Wade Roe)
3. 11:20 AM - Battery Proximity and mounting (MLWynn@aol.com)
Message 1
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| Subject: | First choice alternator decision |
6/24/2009
Hello Wade, Will you have low voltage warning with the Plane Power
installation?
I would not be without a low voltage (battery not being charged) warning
capability.
'OC' Says: "The best investment we can make is the effort to gather and
understand knowledge."
==============================================
Time: 07:13:44 AM PST US
From: "Wade Roe" <wroe1@dbtech.net>
Subject: AeroElectric-List: First choice alternator decision
Gentleman,
This topic was touched on earlier but I'm still not sure which route is
best regarding the primary alternator for my RV-7. I am interested in
the best quality unit that will also coincide nicely with the AEC system
designs (particulary Z-13/8). The options are as follows:
--Plane Power 60A alternator with OV protection and internal
regulation, or
--B&C L-60 matched up with an LR3C-14.
This will be an all electric IFR plane with one battery and SD-8 aux
alternator.
Any thoughts or comments would be appreciated.
Thanks!
Wade Roe
EAA 557
Aeronca 7AC flying
RV-7 in process
Message 2
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| Subject: | First choice alternator decision |
Thank you for the comments. The Plane Power unit has over voltage
protection but no low voltage warning features. My plan would be to
defer that task to the AEC9005-101 (low voltage monitor) that connects
to the main buss per diagram Z-13 AEC. If main buss voltage drops I
don't believe that there would be anything to blame other than the
primary alternator. In this event, you get the bright yellow LV warning
light on the panel and you're shutting down any unnecessary equipment to
see if that will temporarily remedy the issue. My next move would be to
bring up the aux alternator and e-buss...at least I think that would be
the proper protocol.
Wade Roe
EAA 557
Aeronca 7AC flying
RV-7 in process
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of
bakerocb@cox.net
Sent: Wednesday, June 24, 2009 6:37 AM
Subject: AeroElectric-List: First choice alternator decision
6/24/2009
Hello Wade, Will you have low voltage warning with the Plane Power
installation?
I would not be without a low voltage (battery not being charged) warning
capability.
'OC' Says: "The best investment we can make is the effort to gather and
understand knowledge."
==============================================
Time: 07:13:44 AM PST US
From: "Wade Roe" <wroe1@dbtech.net>
Subject: AeroElectric-List: First choice alternator decision
Gentleman,
This topic was touched on earlier but I'm still not sure which route is
best regarding the primary alternator for my RV-7. I am interested in
the best quality unit that will also coincide nicely with the AEC system
designs (particulary Z-13/8). The options are as follows:
--Plane Power 60A alternator with OV protection and internal
regulation, or
--B&C L-60 matched up with an LR3C-14.
This will be an all electric IFR plane with one battery and SD-8 aux
alternator.
Any thoughts or comments would be appreciated.
Thanks!
Wade Roe
EAA 557
Aeronca 7AC flying
RV-7 in process
Message 3
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| Subject: | Battery Proximity and mounting |
Hi all,
I am building an all-electric RV 8 with dual electronic ignition. I plan
to use two P680 batteries. As I was sorting out where to put them, I had
decided to strap them together and put them behind the firewall on the right.
A building buddy asked the question, are they okay to be strapped
together? Are there any failure modes where one might fail and take out the other
out at the same time?
I thought I would ask the same question to the list and/or Bob. I really
like the "change one out every annual" approach described in the
Aeroelectric book, which is why I am going with two identical batteries. The
new and
improved section on batteries does not describe explosion or melt-down as
a likely failure of RG batteries so I had thought that mounting them
together and in the inside of the plane would be okay.
In retrospect, I can see that I should have built in the mounting system
before I riveted on the front bottom skin. As is, I am still scratching my
head about where exactly to put them and how to property secure them to the
airframe. I am very open to suggestions.
Regards,
Michael Wynn
RV 8 FWF
San Ramon, CA
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